Add automatic Alchemy potion colorization and custom color configuration.

src/main/java/com/gmail/nossr50/config/skills/alchemy/PotionConfig.java

@@ -6,6 +6,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.bukkit.ChatColor;
+import org.bukkit.Color;
 import org.bukkit.Material;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.inventory.ItemStack;
@@ -165,6 +166,14 @@ public class PotionConfig extends ConfigLoader {
                     }
                 }
             }
+            
+            Color color = null;
+            if (potion_section.contains("Color")) {
+                color = Color.fromRGB(potion_section.getInt("Color"));
+            }
+            else {
+                color = this.generateColor(effects);
+            }
 
             Map<ItemStack, String> children = new HashMap<ItemStack, String>();
             if (potion_section.contains("Children")) {
@@ -179,7 +188,7 @@ public class PotionConfig extends ConfigLoader {
                 }
             }
 
-            return new AlchemyPotion(material, data, name, lore, effects, children);
+            return new AlchemyPotion(material, data, name, lore, effects, color, children);
         }
         catch (Exception e) {
             mcMMO.p.getLogger().warning("Failed to load Alchemy potion: " + potion_section.getName());
@@ -251,4 +260,38 @@ public class PotionConfig extends ConfigLoader {
         }
         return null;
     }
+    
+    public Color generateColor(List<PotionEffect> effects) {
+        if (effects != null && !effects.isEmpty()) {
+            List<Color> colors = new ArrayList<Color>();
+            for (PotionEffect effect : effects) {
+                if (effect.getType().getColor() != null) {
+                    colors.add(effect.getType().getColor());
+                }
+            }
+            if (!colors.isEmpty()) {
+                if (colors.size() > 1) {
+                    return calculateAverageColor(colors);
+                }
+                return colors.get(0);
+            }
+        }
+        return null;
+    }
+    
+    public Color calculateAverageColor(List<Color> colors) {
+        int red = 0;
+        int green = 0;
+        int blue = 0;
+        for (Color color : colors) {
+            System.out.println("Input color: " + color);
+            red += color.getRed();
+            green += color.getGreen();
+            blue += color.getBlue();
+        }
+        Color color = Color.fromRGB(red/colors.size(), green/colors.size(), blue/colors.size());
+        System.out.println("Output color: " + color);
+        return color;
+    }
+    
 }

src/main/java/com/gmail/nossr50/datatypes/skills/alchemy/AlchemyPotion.java

@@ -4,6 +4,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import org.bukkit.Color;
 import org.bukkit.Material;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.PotionMeta;
@@ -19,15 +20,17 @@ public class AlchemyPotion {
     private String name;
     private List<String> lore;
     private List<PotionEffect> effects;
+    private Color color;
     private Map<ItemStack, String> children;
 
-    public AlchemyPotion(Material material, PotionData data, String name, List<String> lore, List<PotionEffect> effects, Map<ItemStack, String> children) {
+    public AlchemyPotion(Material material, PotionData data, String name, List<String> lore, List<PotionEffect> effects, Color color, Map<ItemStack, String> children) {
         this.material = material;
         this.data = data;
         this.lore = lore;
         this.name = name;
         this.effects = effects;
         this.children = children;
+        this.color = color;
     }
 
     public String toString() {
@@ -52,6 +55,10 @@ public class AlchemyPotion {
                 meta.addCustomEffect(effect, true);
             }
         }
+        
+        if (this.getColor() != null) {
+            meta.setColor(this.getColor());
+        }
 
         potion.setItemMeta(meta);
         return potion;
@@ -97,6 +104,14 @@ public class AlchemyPotion {
         this.effects = effects;
     }
 
+    public Color getColor() {
+        return color;
+    }
+    
+    public void setColor(Color color) {
+        this.color = color;
+    }
+    
     public Map<ItemStack, String> getChildren() {
         return children;
     }

src/main/resources/potions.yml

@@ -45,6 +45,7 @@ Concoctions:
 #       Name: <name>                    Custom display name for this potion (optional)
 #       Material: <material>            Material for this potion, defaults to POTION
 #       Data:  <data_value>             Data value for this potion (if this is not present it will read from identifier)
+#       Color: <color>                  Custom color for the potion in RGB integer (e.g. 0xFF000, optional)
 #       Lore: ["lore1","lore2"...]      Custom lore for this potion (section is optional)
 #       Children:                       The potential children of this potion (section is optional)
 #           <INGREDIENT>: <NEW_IDENTIFIER>      The ingredient used, and resultant potion's identifier